The character trait of Aza Holmes is fear and worriedness because of the anxiety disorders she suffers which is hypochondria and OCD.
Look at all this money Aza
In the book Daisy urges Aza to come along and investigate Russell Pickett's house for clues about his disappearance. Aza knows Pickett's son from when they were in a dead parents group. Then the security guard catches them on the property and Davis ends up talking to Aza for the first time in a little while.
Russell Picket disappears before a police raid happens on his home. That leaves his sons David and Noah and orphan since there mother died when they were little. The police give out a hundred thousand dollars to the person that finds Russell.
Aza and Daisy found out that Russell left all his money to a tuatara (Which is an ancient lizard like creature that descended from the dinosaurs).
Daisy suggest to give the police the information about what they know about russell pickett but Aza doesn't with her idea. After Daisy get's Aza in to a date with David while she goes with Mychal (Mychal is a genius in art). They all go to David's house and have a fun time.